CN101922071B - Tyre cord and comprise the pneumatic tire of this tyre cord - Google Patents
Tyre cord and comprise the pneumatic tire of this tyre cord Download PDFInfo
- Publication number
- CN101922071B CN101922071B CN201010202960.8A CN201010202960A CN101922071B CN 101922071 B CN101922071 B CN 101922071B CN 201010202960 A CN201010202960 A CN 201010202960A CN 101922071 B CN101922071 B CN 101922071B
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- Prior art keywords
- core
- cord
- tyre
- strand
- clad
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- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/0042—Reinforcements made of synthetic materials
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/48—Tyre cords
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/10—Tyres specially adapted for particular applications for motorcycles, scooters or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Tires In General (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The present invention improves a kind of tyre cord (10), it comprises core (11) and clad (12), this core is made up of aramid fibre that twisting with the fingers together with lay length of twist (P1), this clad (12) comprises at least one strand (14) of being made up of aramid fibre and is wound around around core to be wound around pitch (P2), wherein, be wound around pitch (P2) and be less than lay length of twist (P1), and the total fiber number (A) forming the aramid fibre of core (11) is less than the fiber number (B) of the aramid fibre of each strand (14) forming clad (12).A kind of pneumatic tire (1), it comprises the strengthening course of the tyre surface strengthening course be such as made up of tyre cord (10).
Description
Technical field
The present invention relates to a kind of tyre cord and comprise the pneumatic tire of this tyre cord, more specifically, relate to a kind of structure that can increase the aramid fibre cord of the initial elongation of tyre cord.
Background technology
Usually, pneumatic tire provides the tyre surface strengthening course of the radial outside being arranged on carcass.
Known in the prior art, term " tyre surface strengthening course " comprising: the layer of so-called " band ", and it is formed by with the reinforcement cord becoming low-angle (being such as less than 10 degree) to arrange relative to tire circumferential direction; And the layer of so-called " band bundled layer " or " cushion ", it is formed by with the reinforcement cord becoming relatively large angle to arrange relative to tire circumferential direction.Such as, in Japanese Patent Application Publication No.JP-2007-308101A, disclose the band be made up of all-steel cord or aramid cord.
On the other hand, pneumatic tire is normally formed by cured tire base in a mold.Between tire base curing time, pressurizeed to be pressed onto on the inner surface of mould by the outer surface of tire base in the inner side of tire base.
Therefore, between tire base curing time, if the stretching, extension of tyre surface strengthening course is less, then because tyre surface strengthening course, particularly band hinder the expansion of tread portion, so the possibility that the tread portion that there is tire base cannot fully be expanded in a mold.Therefore raw tread-rubber is difficult to be pressed onto completely on the inner surface of mould.In other words, the tire tread contour being provided for airtyred expectation is difficult to.
If adopt low modulus cord in tyre surface strengthening course, then can improve tire building precision.But in vulcanized tyre, tyre surface strengthening course is difficult to provide sufficient reinforcing effect and lock ring effect on tread portion.Therefore, the deflection increase of tread portion and the possibility of control stability deterioration during there is traveling.
Summary of the invention
Therefore, the object of this invention is to provide a kind of tyre cord, its stretch modulus, in the larger change in certain percentage elongation place, makes showing relatively low stretch modulus lower than this cord during above-mentioned certain percentage elongation, and higher than the relatively high stretch modulus of this cord display during described certain percentage elongation.Therefore, when adopting this tyre cord in the tyre surface strengthening course at such as band, between curing time, tyre surface strengthening course can suitably stretch, but after vulcanization, tyre surface strengthening course in vulcanized tyre can not easily stretch, and therefore can improve tire building precision and on tread portion, provide sufficient reinforcing effect and lock ring effect.
Another object of the present invention is to provide a kind of pneumatic tire, and it has the reinforcement cord ply (such as, tyre surface band) be made up of above-mentioned tyre cord, and tyre performance is improved.
According to the present invention, tyre cord comprises: core, and it is made up of aramid fibre that twisting with the fingers together with lay length of twist (or arrangement length); And clad, it comprises at least one strand of being made up of aramid fibre and is wound around around core to be wound around pitch (or arrangement length), wherein,
Be wound around pitch and be less than lay length of twist, and
The total fiber number (A) forming the aramid fibre of core is less than the fiber number (B) of the aramid fibre of each strand forming clad.
According to an aspect of the present invention, pneumatic tire comprises the tyre cord of the band cord as tyre surface strengthening course.
Preferably, total fiber number (A) is set in from the scope of 0.2 to 0.6 with the ratio (A/B) of fiber number (B).Described lay length of twist P1 is set in from the scope of 1.1 to 5.0 with the ratio (P1/P2) being wound around pitch P2.Total fiber number (A) is set in from the scope of 400 to 900dtex, and fiber number (B) is set in from the scope of 1500 to 1900dtex.
In this application, " fiber number " means " based on revising the fiber number of quality " of measuring according to Japanese Industrial Standards JIS-L1017 (test method for chemical fibre tyre cord).
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of pneumatic tires according to the present invention.
Fig. 2 is the schematic perspective view of rubber strip, is wherein embedded with according to tyre cord of the present invention.
Fig. 3 (a) is the schematic cross section according to tyre cord of the present invention.
Fig. 3 (b) is the schematic side elevation of tyre cord.
Fig. 4 illustrates according to the load-elongation curve of the tyre cord of the present invention curve map together with the load-elongation curve of conventional steel silk cord and aramid cord.
Fig. 5 is the curve map that the load-elongation curve according to identical tyre cord of the present invention be embedded in pneumatic tire is shown.
Fig. 6 illustrates the curve map as the camber thrust difference (CTf-CTr) between the front-wheel at motorcycle of the function of camber angle and trailing wheel.
Fig. 7 (a), 7 (b), 7 (c), 7 (d) and 7 (e) are the schematic cross section according to tyre cord of the present invention adopted in following comparative test.
Fig. 8 (a) and 8 (b) are the schematic cross section of traditional aramid cord and the conventional steel silk cord adopted in following comparative test.
Detailed description of the invention
Now by reference to the accompanying drawings embodiments of the present invention will be described.
In the drawings, pneumatic tires according to the present invention 1 comprises: tread portion 2; Pair of sidewall part 3, wherein has the bead part 4 of bead core 5 for a pair; Carcass 6, it extends between bead part 4 through tread portion 2 and side wall portion 3; And tyre surface strengthening course 7, it is arranged on the radial outside of carcass 6 in tread portion 2.
Use in tyre surface strengthening course 7 according to tyre cord 10 of the present invention.
In this embodiment, pneumatic tire 1 is motorcycle tyre, wherein in the tire cross section comprising tire rotation axis, when compared with tyres for passenger cars, truck/passenger tyre etc., tread portion 2 (comprising carcass 6, tyre surface strengthening course 7 and the tread rubber on it) bends with relatively little radius of curvature, and therefore the maximum cross section width of tire between tread edge Te.
Carcass 6 is made up of single casing ply 6A, its through tread portion 2 and side wall portion 3 extend between bead part 4 and in each bead part 4 from the Inside To Outside of tire around bead core 5 anti-package thus formed a pair anti-package part 6b and main part 6a therebetween.Casingply 6A is made up of body cord, and this body cord is arranged in meridian mode to become the angle in the scope of 75 to 90 degree, preferably 80 to 90 degree relative to tire equator line C.For body cord, the organic fiber cords such as such as polyester, nylon, artificial fibre can be adopted.The bead apex 8 be made up of vulcanie is filled in the space formed between casingply main part 6a and anti-package part 6b in each bead part 4.
Tyre surface strengthening course 7 comprises the string of a hat casing ply 7A that at least one (being only in this embodiment) has non junction structure, and it is formed by least one the band cord 10 of radial outside spiral winding around carcass.That is, string of a hat casing ply 7A is made up of multiple pitch of the laps of at least one band cord 10.String of a hat casing ply 7A extends across 80% to 95% of the width of tread portion along bending tread surface between tread edge Te.When tyres for passenger cars, tyre surface strengthening course 7 also comprises cushion, and this cushion is made up of at least two cross-plies of cushion cord.
In this embodiment, as shown in Figure 2, with the form of narrow and long raw rubber billot 9, one or more band cord 10 is embedded in raw top to cover in rubber G.In the process building tire base, carded sliver material 9 is spirally wound on the radial outside of green tire body to form string of a hat casing ply 7A.Comprise the tire base (not shown) sulfuration in a mold of raw string of a hat casing ply 7A.
Tyre cord according to the present invention is adopted by as band cord 10.For the sake of simplicity, in the following describes of tyre cord according to the present invention, identical Reference numeral " 10 " is used.
As shown in Fig. 3 (a) He 3 (b), tyre cord 10 is made up of multiple aramid fibres of twisting with the fingers together and has core-clad structure, and this core-clad structure comprises core 11 and the clad 12 around core.
Core 11 is made up of single strand 13 that making by twisting with the fingers aramid fibre together with lay length of twist (or arrangement length) P1 (mm), or makes by twisting with the fingers with lay length of twist (or arrangement length) P1 (mm) the multiple strands 13 made together and by aramid fibre.In this embodiment, the quantity of strand 13 is two.
Multiple strands 14 that clad 12 is made up of single strand 14 that being made by aramid fibre or is made up of aramid fibre are respectively made, and strand 14 is to be less than winding pitch (or arrangement length) P2 (mm) of the lay length of twist P1 (mm) of core 11 around above-mentioned core 11 spiral winding.In this embodiment, the quantity of strand 14 is two.
The ratio (P1/P2) of the lay length of twist P1 of core 11 and the winding pitch P2 of clad 12 is set in and is not less than 1.1, is preferably not less than 1.2, is more preferably not less than 1.5, but is not more than 5.0, is preferably not more than 4.5, is more preferably not more than in the scope of 4.0.
The total fiber number (A) forming all aramid fibres of core 11 is set to the fiber number (B) of the aramid fibre being less than each strand 14 forming clad 14.More specifically, when core 11 is only made up of a strand 13, total fiber number (A) equals the fiber number of strand 13.When core 11 is made up of multiple strand 13, total fiber number (A) is the total fiber number of all strands 13.
Preferably, the ratio (A/B) of total fiber number (A) and fiber number (B) is set in and is not less than 0.2, is more preferably not less than 0.3, but is not more than 0.6, be more preferably not more than in the scope of 0.5.
Preferably, the total fiber number (A) of core 11 is set in and is not less than 400dtex, is more preferably not less than 500dtex, is more preferably not less than 600dtex, but is not more than 900dtex, is more preferably not more than 850dtex, is more preferably not more than in the scope of 800dtex.
Preferably, the fiber number (B) of each clad strand 14 is set in and is not less than 1500dtex, is more preferably not less than 1500dtex, is more preferably not less than 1600dtex, but is not more than 1900dtex, is more preferably not more than 1800dtex, is more preferably not more than in the scope of 1700dtex.
Consider the durability of tyre cord 10 and the structural stability in order to prevent fiber loose, expect that the quantity of the strand 13 forming core 11 is identical with the quantity of the strand 14 forming clad 12.
Therefore, when loading tyre cord, because the lay length of twist P1 of core 11 is greater than the winding pitch P2 of clad strand 14, so most of cord load applying is to core 11.Meanwhile, because the total fiber number of core is relatively little, so core is easier to extend compared with clad.Therefore, in the starting stage of the extension of tyre cord 10, the stretch modulus of tyre cord becomes relatively low, and cord is easier to extend.
On the other hand, when tyre cord 10 is extended by the cord load increased, the winding pitch P2 of clad strand 14 increases, that is, clad strand becomes linearity more.Therefore, cord load is shared to the relatively large clad strand 14 of fiber number from core 11.Therefore, the stretch modulus of tyre cord 10 uprises, and tyre cord becomes and is difficult to further extension.
Therefore, the load-elongation curve according to tyre cord 10 of the present invention has: low stretch modulus region Y1, and it is from initial point 0 to bending point; And high stretch modulus region Y2, it is the breakdown point from bending point P towards tyre cord, as shown in Figure 4, the load-elongation curve of the exemplary load-percentage elongation curve that it illustrates tyre cord 10 to be the load-elongation curve of the conventional steel silk cord of 3 × 3 × 0.17 and structure together with structure the be traditional aramid cord of 670dtex/2.
When being when drawing load-elongation curve in the orthogonal coordinate of engineer's scale at axis, the load-elongation curve of tyre cord 10 has the substantially straight part Y1a and Y2a in low stretch modulus region Y1 and high stretch modulus region Y2 respectively.
Above-mentioned bending point P be by load-elongation curve with through intersection point Pp and the joining of straight line that the axis being parallel to " load " draws limit, intersection point Pp is the intersection point of the extended line of straight line portion Y1a and the extended line of straight line portion Y2a.
When motorcycle tyre in this embodiment, in order to meet the requirement as the tyre cord of band cord, expect that bending point P appears at following percentage elongation (%) place of tyre cord, that is, from the scope of 1.0% to 2.0%, more preferably 1.0% to 1.5%.
As mentioned above, in tyre cord 10 of the present invention, compare with aramid cord with traditional all-steel cord, due to low stretch modulus region Y1, tyre cord 10 is increased at the percentage elongation of starting stage.But, tyre cord 10 percentage elongation close to or after reaching high stretch modulus region Y2, the stretch modulus of tyre cord becomes equally high with traditional all-steel cord, and therefore, the further extension of tyre cord is effectively controlled.Therefore, in tyre cord 10 preferably, that is, band cord allows tyre surface strengthening course 7 suitably to stretch during vulcanized tyre, and tread portion 2 (or tread-rubber) is pressed onto on the inner surface of sulfurizing mould (not shown) completely.Therefore, it is possible to obtain the tire tread contour expected, and formed precision and tyre evenness can be increased.
During vulcanized tyre, tyre cord 10 is extended by the pressure be applied to inside tire base.Make this extension state of tyre cord 10 be fixed when rubber is hardening.Therefore, after tyre vulcanization, the tyre cord 10 be embedded in tire 1 demonstrates the load-elongation curve different from the above-mentioned load-elongation curve of independent cord.More specifically, as shown in Figure 5, when bending point Pv is shifted towards initial point 0, low stretch modulus region Y1v disappears or becomes very little.In other words, load-elongation curve becomes and almost only has high stretch modulus region Y2v.Therefore, tyre surface strengthening course can provide lock ring effect on the tread portion 2 of pneumatic tire 1, and can improve control stability.
But, if the rigidity of tread portion 2 is too high, then the envelope of tire or ground connection property, the deterioration such as to feel with grabbing.Therefore, in order to the rigidity providing tread portion 2 flexibility to a certain degree to keep necessary simultaneously, expect that the band cord 10 be embedded in vulcanized tyre has low stretch modulus region Y1v among a small circle, make bending point Pv occur in following percentage elongation place, that is, from the scope of 0.5% to 1.5%.This bending point Pv limits in the mode identical with above-mentioned bending point P.
If above-mentioned pitch ratio (P1/P2) is less than 1.1, then in the starting stage extended, the cord load born by clad strand 14 increases, and therefore, low stretch modulus region Y1 diminishes and stretch modulus in this region uprises, therefore, the initial elongation of cord becomes less.If pitch ratio (P1/P2) is greater than 5.0, then as follows may exist, that is, in high stretch modulus region Y2, core is excessively extended and is ruptured.
If above-mentioned fiber number ratio (A/B) is less than 0.2, then, compared with clad strand 14, the intensity of core 11 becomes too small, and there is the possibility when core 11 during tyre vulcanization ruptures.If fiber number ratio (A/B) is greater than 0.6, then the rigidity of core 11 increases, and initial elongation reduces.Therefore there is the possibility of tire building precision deterioration.
If the total fiber number of core 11 (A) is less than 400dtex, then the intensity of core 11 reduces, and there is the possibility that tyre cord 10 ruptures due to extension during tyre vulcanization.If total fiber number (A) is greater than 900dtex, then the initial elongation existed in low stretch modulus region Y1 becomes not enough possibility.
If the fiber number of clad strand 14 (B) is less than 1500dtex, then the tyre surface strengthening course being difficult to control tire during travelling stretches, and therefore there is the possibility of control stability deterioration.If the fiber number of clad strand 14 (B) is greater than 1900dtex, then the rigidity of clad strand 14 excessively increases, and there is the possibility of the riding comfort deterioration of tire.
Fig. 6 shows as the difference (CTf-CTr) between the front wheel camber thrust CTf of camber angle (degree) function and trailing wheel camber thrust CTr.By adopting the tyre cord 10 in tyre surface reinforcement band, compare with traditional aramid cord with traditional all-steel cord, the envelope of tire improves, and in order to motorcycle when changing turning into from straight-line travelling tilts can steadily successfully carry out, and can control stability be improved.In addition, compared with all-steel cord, there is the possibility of tire weight and fuel consumption reduction.
Comparative test
The band cord with the technical specification shown in table 1 is utilized to manufacture motorcycle tyre.Except band cord, all tire has the identical structure shown in constructed specification and Fig. 1.Incidentally, the technical specification of the band cord shown in table 1 is the technical specification of independent cord before embedding in tire, that is, be not the technical specification of the cord obtained from vulcanized tyre.
Travel performance test
Each tire is arranged on the trailing wheel of the big bike of 1000cc discharge capacity.Motorcycle travels on test endless track, and by test drive person, control stability, ground connection feels, feel with grabbing, rigidity sense, inclination and riding comfort be evaluated as five evaluation numbers, wherein, evaluates number more high better.Result is pointed out in Table 1.
Trailing wheel
Tire size: 190/55ZR17
Rim size: MT6.00 × 17
Tire pressure: 290kPa
Front-wheel
Tire size: 120/70ZR17
Rim size: MT3.50 × 17
Tire pressure: 250kPa
Uniformity test
Test the radial dimension deviation of each tire.The index that result (mean values of 20 examples) is 100 with the result of example 1 is based on the comparison pointed out in Table 1, and wherein this value is the smaller the better.
Tire weight
The index that the weight of each tire is 100 with the result of example 1 is based on the comparison pointed out in Table 1, and wherein this value is the smaller the better.
From result of the test, in the embodiment of tire according to the present invention, can determine owing to improving formed precision and therefore improve control stability and tyre evenness.
As mentioned above, the present invention is suitable for being applied to band cord, but can also be applied to the reinforcement cord of the various strengthening courses of such as body cord and cushion cord.In addition, except motorcycle tyre, the present invention can be applied to the various tires of such as tyres for passenger cars.
Claims (8)
1. a tyre cord, it is formed by aromatic polyamide fibre, comprising:
Core, multiple core strand is twisted with the fingers with lay length of twist P1 and is formed together by described core, and
Clad, described clad is that the surrounding being wrapped in described core by least one clad strand and to be wound around pitch P2 is formed,
Wherein,
Described winding pitch P2 is less than described lay length of twist P1, and
The total fiber number A of described core is less than the fiber number B of the aramid fibre of each strand at least one strand described forming described clad,
Wherein the unit of lay length of twist P1, winding pitch P2 is mm,
The ratio (P1/P2) of the lay length of twist P1 of described core and the winding pitch P2 of described clad strand is from the scope of 1.1 to 5.0.
2. tyre cord according to claim 1, wherein said core is twisted with the fingers by two core strands and is formed together.
3. tyre cord according to claim 1 and 2, wherein said clad is formed by two described clad strands.
4. tyre cord according to claim 1 and 2, the quantity wherein forming the core strand of described core equals the quantity of the clad strand forming described clad.
5. tyre cord according to claim 1 and 2, the ratio (A/B) of the fiber number B of each strand in the total fiber number A of wherein said core and at least one strand described of described clad is from the scope of 0.2 to 0.6, and wherein the unit of total fiber number A, fiber number B is dtex.
6. tyre cord according to claim 1 and 2, the total fiber number A of wherein said core is from the scope of 400 to 900, and the fiber number B of each strand at least one strand described of described clad is from the scope of 1500 to 1900, and wherein the unit of total fiber number A, fiber number B is dtex.
7. a pneumatic tire, is characterized in that, it has the tyre cord in claim 1 to 6 described in any one.
8. pneumatic tire according to claim 7, wherein said tyre cord is used as making the tyre surface strengthening course be arranged in tread portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009141688A JP4814979B2 (en) | 2009-06-12 | 2009-06-12 | Tire cord and pneumatic tire using the same |
| JP2009-141688 | 2009-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101922071A CN101922071A (en) | 2010-12-22 |
| CN101922071B true CN101922071B (en) | 2015-08-05 |
Family
ID=42342845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010202960.8A Expired - Fee Related CN101922071B (en) | 2009-06-12 | 2010-06-10 | Tyre cord and comprise the pneumatic tire of this tyre cord |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2261058B1 (en) |
| JP (1) | JP4814979B2 (en) |
| KR (1) | KR20100133915A (en) |
| CN (1) | CN101922071B (en) |
| AT (1) | ATE541716T1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2975407B1 (en) * | 2011-05-18 | 2014-11-28 | Michelin Soc Tech | COMPOSITE CORD FOR PNEUMATIC BANDAGE BEARING ROPE |
| US20150122395A1 (en) * | 2011-12-27 | 2015-05-07 | Pirelli Tyre S.P.A. | Tyre for motorcycles |
| CN104790081B (en) * | 2015-04-14 | 2017-03-22 | 上海方纶新材料科技有限公司 | Composite cord for tire |
| FR3040656A1 (en) * | 2015-09-04 | 2017-03-10 | Michelin & Cie | PNEUMATIC COMPRISING CARCASS FRAME CABLES WITH LOW CARBON RATES AND REDUCED RUBBER MELT THICKNESSES |
| FR3040912A1 (en) * | 2015-09-16 | 2017-03-17 | Michelin & Cie | PNEUMATIC COMPRISING CARCASE FRAME CABLES WITH LOW CARBON RATES |
| MX2017016661A (en) * | 2015-09-17 | 2018-03-23 | Kordsa Teknik Tekstil As | A cap ply reinforcement cord. |
| IT201600117754A1 (en) * | 2016-11-22 | 2018-05-22 | Pirelli | Motorcycle tire |
| US11655586B2 (en) * | 2017-10-31 | 2023-05-23 | Compagnie Generale Des Etablissements Michelin | Cable for a tire |
| JP7119879B2 (en) * | 2018-10-12 | 2022-08-17 | 住友ゴム工業株式会社 | Composite cord and tire using it |
| JP6838613B2 (en) * | 2019-01-24 | 2021-03-03 | 横浜ゴム株式会社 | Pneumatic radial tire |
| BR112022009757A2 (en) * | 2019-12-17 | 2022-08-09 | Pirelli | METALLIC REINFORCEMENT CABLE FOR VEHICLE WHEEL TIRES |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0133205A1 (en) * | 1983-06-13 | 1985-02-20 | E.I. Du Pont De Nemours And Company | Cored yarn as a reinforcement structure |
| CN1620532A (en) * | 2002-01-17 | 2005-05-25 | 米其林技术公司 | Hybrid cords, method for obtaining same and composite fabrics incorporating same |
| EP2017093A2 (en) * | 2007-07-20 | 2009-01-21 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55500744A (en) * | 1978-06-16 | 1980-10-09 | ||
| US4893665A (en) * | 1988-02-17 | 1990-01-16 | The Goodyear Tire & Rubber Company | Cables for reinforcing deformable articles and articles reinforced by said cables |
| JP2757940B2 (en) * | 1988-03-28 | 1998-05-25 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP2981254B2 (en) * | 1990-04-18 | 1999-11-22 | 旭化成工業株式会社 | Cap ply cord |
| JP2001355139A (en) * | 2000-06-13 | 2001-12-26 | Asahi Kasei Corp | Rubber reinforcing cord |
| JP4546814B2 (en) * | 2004-12-09 | 2010-09-22 | 帝人テクノプロダクツ株式会社 | Rubber reinforcing fiber cord and hose |
| JP4956049B2 (en) | 2006-05-22 | 2012-06-20 | 住友ゴム工業株式会社 | Pneumatic tires for motorcycles |
| JP4893959B2 (en) * | 2007-07-20 | 2012-03-07 | 東レ・デュポン株式会社 | Aromatic polyamide fiber cord for rubber reinforcement and method for producing the same |
| JP4956311B2 (en) * | 2007-07-20 | 2012-06-20 | 住友ゴム工業株式会社 | Pneumatic tire |
-
2009
- 2009-06-12 JP JP2009141688A patent/JP4814979B2/en not_active Expired - Fee Related
-
2010
- 2010-06-02 EP EP10005772A patent/EP2261058B1/en not_active Not-in-force
- 2010-06-02 AT AT10005772T patent/ATE541716T1/en active
- 2010-06-10 CN CN201010202960.8A patent/CN101922071B/en not_active Expired - Fee Related
- 2010-06-11 KR KR1020100055687A patent/KR20100133915A/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0133205A1 (en) * | 1983-06-13 | 1985-02-20 | E.I. Du Pont De Nemours And Company | Cored yarn as a reinforcement structure |
| CN1620532A (en) * | 2002-01-17 | 2005-05-25 | 米其林技术公司 | Hybrid cords, method for obtaining same and composite fabrics incorporating same |
| EP2017093A2 (en) * | 2007-07-20 | 2009-01-21 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010285728A (en) | 2010-12-24 |
| JP4814979B2 (en) | 2011-11-16 |
| EP2261058A1 (en) | 2010-12-15 |
| KR20100133915A (en) | 2010-12-22 |
| ATE541716T1 (en) | 2012-02-15 |
| EP2261058B1 (en) | 2012-01-18 |
| CN101922071A (en) | 2010-12-22 |
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